Kunihiro Hayakawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Recovery method for discharged cooling water
- Patent number 11,130,694
- Issue date Sep 28, 2021
- Kurita Water Industries Ltd.
- Kunihiro Hayakawa
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Agent and method for cleaning permeable membranes
- Patent number 10,307,713
- Issue date Jun 4, 2019
- Kurita Water Industries Ltd.
- Tetsuya Aoki
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for operating reverse osmosis membrane device, and reverse o...
- Patent number 10,252,219
- Issue date Apr 9, 2019
- Kurita Water Industries Ltd.
- Kunihiro Hayakawa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Reverse-osmosis-membrane device and method for operating the same
- Patent number 10,239,019
- Issue date Mar 26, 2019
- Kurita Water Industries Ltd.
- Kunihiro Hayakawa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for improving rejection rate of reverse osmosis membrane
- Patent number 10,046,280
- Issue date Aug 14, 2018
- Kurita Water Industries Ltd.
- Kunihiro Hayakawa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for improving rejection of reverse osmosis membrane, treatme...
- Patent number 9,498,754
- Issue date Nov 22, 2016
- Kurita Water Industries Ltd.
- Takahiro Kawakatsu
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method and apparatus for further purifying ultrapure water
- Patent number 9,156,001
- Issue date Oct 13, 2015
- Kurita Water Industries Ltd.
- Hideki Kobayashi
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Agent for increasing rejection with a permeable membrane, process f...
- Patent number 8,025,159
- Issue date Sep 27, 2011
- Kurita Water Industries Ltd.
- Takahiro Kawakatsu
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Patents Applicationslast 30 patents

Information Patent Application
MICROORGANISM CONTAMINATION PREVENTION METHOD FOR WATER SYSTEM
- Publication number 20250051203
- Publication date Feb 13, 2025
- KURITA WATER INDUSTRIES LTD.
- Yuta OHTSUKA
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
METHOD FOR OPERATING DEMINERALIZATION APPARATUS
- Publication number 20240067539
- Publication date Feb 29, 2024
- KURITA WATER INDUSTRIES LTD.
- Kazuki ISHII
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
MEMBRANE SEPARATION METHOD
- Publication number 20240025772
- Publication date Jan 25, 2024
- KURITA WATER INDUSTRIES LTD.
- Yuta OHTSUKA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
CHEMICAL DOSING CONTROL METHOD
- Publication number 20220097007
- Publication date Mar 31, 2022
- KURITA WATER INDUSTRIES LTD.
- Yuta OHTSUKA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
RECOVERY METHOD AND RECOVERY DEVICE FOR DISCHARGED COOLING WATER
- Publication number 20180194659
- Publication date Jul 12, 2018
- KURITA WATER INDUSTRIES LTD.
- Kunihiro HAYAKAWA
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
REVERSE-OSMOSIS-MEMBRANE DEVICE AND METHOD FOR OPERATING THE SAME
- Publication number 20170232389
- Publication date Aug 17, 2017
- KURITA WATER INDUSTRIES LTD.
- Kunihiro HAYAKAWA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR OPERATING REVERSE OSMOSIS MEMBRANE DEVICE, AND REVERSE O...
- Publication number 20160016122
- Publication date Jan 21, 2016
- KURITA WATER INDUSTRIES LTD.
- Kunihiro HAYAKAWA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
MULTI-STAGE REVERSE OSMOSIS MEMBRANE SYSTEM AND OPERATION METHOD TH...
- Publication number 20150376034
- Publication date Dec 31, 2015
- KURITA WATER INDUSTRIES LTD.
- Kunihiro HAYAKAWA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR IMPROVING REJECTION RATE OF REVERSE OSMOSIS MEMBRANE, RE...
- Publication number 20150306545
- Publication date Oct 29, 2015
- KURITA WATER INDUSTRIES LTD.
- Kunihiro HAYAKAWA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
AGENT AND METHOD FOR CLEANING PERMEABLE MEMBRANES
- Publication number 20150045276
- Publication date Feb 12, 2015
- KURITA WATER INDUSTRIES LTD.
- Tetsuya Aoki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR IMPROVING REJECTION OF REVERSE OSMOSIS MEMBRANE, TREATME...
- Publication number 20130324664
- Publication date Dec 5, 2013
- KURITA WATER INDUSTRIES LTD.
- Takahiro Kawakatsu
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD OF ENHANCING REJECTION OF PERMEATION MEMBRANE, REJECTION-ENH...
- Publication number 20100136238
- Publication date Jun 3, 2010
- Kunihiro Hayakawa
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD AND APPARATUS FOR FURTHER PURIFYING ULTRAPURE WATER
- Publication number 20100044311
- Publication date Feb 25, 2010
- KURITA WATER INDUSTRIES LTD.
- Hideki Kobayashi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Agent for Increasing Rejection with a Permeable Membrane, Process f...
- Publication number 20090032466
- Publication date Feb 5, 2009
- KURITA WATER INDUSTRIES LTD.
- Takahiro Kawakatsu
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Kunihiro Hayakawa

Person

Patents Grantslast 30 patents

Recovery method for discharged cooling water

Agent and method for cleaning permeable membranes

Method for operating reverse osmosis membrane device, and reverse o...

Reverse-osmosis-membrane device and method for operating the same

Method for improving rejection rate of reverse osmosis membrane

Method for improving rejection of reverse osmosis membrane, treatme...

Method and apparatus for further purifying ultrapure water

Agent for increasing rejection with a permeable membrane, process f...

Patents Applicationslast 30 patents

MICROORGANISM CONTAMINATION PREVENTION METHOD FOR WATER SYSTEM

METHOD FOR OPERATING DEMINERALIZATION APPARATUS

MEMBRANE SEPARATION METHOD

CHEMICAL DOSING CONTROL METHOD

RECOVERY METHOD AND RECOVERY DEVICE FOR DISCHARGED COOLING WATER

REVERSE-OSMOSIS-MEMBRANE DEVICE AND METHOD FOR OPERATING THE SAME

METHOD FOR OPERATING REVERSE OSMOSIS MEMBRANE DEVICE, AND REVERSE O...

MULTI-STAGE REVERSE OSMOSIS MEMBRANE SYSTEM AND OPERATION METHOD TH...

METHOD FOR IMPROVING REJECTION RATE OF REVERSE OSMOSIS MEMBRANE, RE...

AGENT AND METHOD FOR CLEANING PERMEABLE MEMBRANES

METHOD FOR IMPROVING REJECTION OF REVERSE OSMOSIS MEMBRANE, TREATME...

METHOD OF ENHANCING REJECTION OF PERMEATION MEMBRANE, REJECTION-ENH...

METHOD AND APPARATUS FOR FURTHER PURIFYING ULTRAPURE WATER

Agent for Increasing Rejection with a Permeable Membrane, Process f...